Ooh, the adapter came this morning and the keyboard works. Gave it a quick wipe over and hoover so now I don't feel as disgusted whilst using it. Small enter key is irritating, but I'll get used to it. Plan to use it for a while.
Has a speaker in the back too which makes a click/tap noise each time you press a key, which works perfectly, as well as the volume control for it which is also on the back. Turned it off, quite irritating.
Now, for my next question, is there a guide anywhere on removing ALPS keys, or are they as simple as Cherry MX to remove? Any rules I should follow? I only ask because I don't want to break any, and it still has 25~ years of crap underneath the keys that I need to deal with.